i apologise for asking such a stupid question, i am extremely new and this problem has been bugging me for a while.
i have this very simple little fahrenheit to celsius conversion program.
what i want it to do is: if you try to input a value less than or equal to -459.4, it gives you a message saying you are a retard.
the program works fine without the if else statement, but when i use the if else statement it gives me an error saying 'celsius was not declared in this scope'.
could you please tell me the source of the problem and how i can fix this.